QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

2 km NNE of Sunnyside, Utah

· -3.5 km deep · released about 23 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Carbon County 21 kmEmery County 70 kmDuchesne County 80 kmUintah County 95 kmGrand County 96 kmSanpete County 106 kmWasatch County 108 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 1.9 (ml)
Depth
-3.5 km below the surface
Felt
no reports yet
Nearest
Carbon County, 21 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 335 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 23 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 660,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 470,000× the energy of this one
  3. Around the size people start to feel M 3.0 42× the energy of this one
  4. This earthquake M 1.9 about 23 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 39.5750, -110.3747. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Carbon County, UT 21 km (13 mi) ESE of here earthquakes near Carbon County
Emery County, UT 70 km (43 mi) NNE of here earthquakes near Emery County
Duchesne County, UT 80 km (49 mi) S of here earthquakes near Duchesne County
Uintah County, UT 95 km (59 mi) SW of here earthquakes near Uintah County
Grand County, UT 96 km (60 mi) NW of here earthquakes near Grand County
Sanpete County, UT 106 km (66 mi) ENE of here earthquakes near Sanpete County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

11 earthquakes have been recorded within 50 km since this one.

  1. 1.5 2 km NNE of Sunnyside, Utah
  2. 1.6 4 km NNE of Kenilworth, Utah
  3. 1.7 6 km SE of Sunnyside, Utah
  4. 1.9 35 km S of East Carbon City, Utah
  5. 1.7 1 km NNW of Kenilworth, Utah
  6. 1.6 6 km ENE of Kenilworth, Utah
  7. 1.8 2 km NW of Kenilworth, Utah
  8. 1.5 1 km NW of Kenilworth, Utah
  9. 1.5 7 km NW of Helper, Utah
  10. 1.8 1 km NNW of Kenilworth, Utah
  11. 2.0 2 km NNE of Kenilworth, Utah

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.